Science- Lights, Sound and Force Set 1

Music ✘ Silence ✘ Noise ✘ Chirping ✔ None of these ✔

Vacuum produced in the flute ✘ Cooling of air ✘ Vibration of air ✘ Heating of air ✔ None of these ✔

Biology ✘ Acoustics ✘ Optics ✘ Ornithology ✔ None of these ✔

Opaque materials ✘ Transparent materials ✘ Translucent materials ✘ Luminous materials ✔ None of these ✔

skin ✘ Nose ✘ Ear ✘ Vocal cords ✔ None of these ✔

Noise. ✘ Silence ✘ Music ✘ Buzz ✔ None of these ✔

Newton ✘ Decibel ✘ Hertz ✘ Metre ✔ None of these ✔

Temperature ✘ Medium of travelling ✘ Humidity ✘ All the above ✔ None of these ✔

Wooden screen ✘ Chart paper ✘ Sunglasses ✘ Both [a] and [b] ✔ None of these ✔

Size of the object and its image is same. ✘ Image is formed behind the mirror. ✘ Image formed is inverted. ✘ All the above ✔ None of these ✔